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t Dv e .n s e e h S 4 H C A B L I m R .MVP d 0k M o m GAR BRAKE ANDSTARTER.'

No. 397,765. Patented Feb. 12,1889.

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(No Model.) 4 sheets-sheet 2.

P. WEILBAC'H.

GAR BRAKE AND STARTER.

No. 397,765. Patented Feb. 12, 1889.

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P. WEILBACH.

GARBRAKB AND STARTER.

Patentedeb. l2., 1889.

V F|G 3 1. WBILBACH.

GAR BRAKE AND STARTER.

No. 397,765. l Patented Feb. 12, 1889-.

- starting mechanism.

Il'Nrrnn Sintes PATENT Dwice.

PHILIP WEILBACH, OF COPENHAGEN, DENMARK.

CAR BRAKE AND STARTER.

SPECIFICATION forming part of Letters Patent No. 397,765, dated February12, 1889.

Application filed August 18, 1888. Serial No.283,l62. (No model.)

To all whom it may concern:

Be it known that l, PHILIP WEILBACH, a subject to the King ot` Denmark,residing at Copenhagen, in the Kingdom of Denmark, have invented certainnew and useful Improvements in Car Brakes and Starters; and I do declarethe following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to the letters and figures of referencemarked thereon, which form a part of this speciiication.

This invention relates to devices for starting street-cars, but it isalso applicable to gasengines and other motors and machines wherein theinertia of heavy parts has to be overcome in starting; hence althoughthe following description and claims describe the invention as appliedto the axle of the car, to which initial motion is to be given, yet itwill `be clearly understood that the axle may represent thc shaft of amotor or a machine, and that the speciiication and claims cover all suchanalogous applications oi' the invention.

The invention consists in the novel construction'and combination of theparts, hereinafter fully described and claimed, whereby a reliable andeffective starting of the car is secured.

In the drawings, Figure l is a plan viewof one end of a car, showing thecar-starter applied thereto. Fig. 2 is a side elevation of the same.Fig. 3 is a detail plan View of the car- Fig. 4 s an end view of thecar-starting mechanism. Fig. 5 is a sectional plan view through thecenter of the said car-starting mechanism. Fig. 6 is a side view of theratchet-wheel to which the end of the spring is attached. Fig. 7 is adetail side view of the pawl on the end ot' the spring for engaging withthe ratchet-wheel. Fig. S is a modification of the pawl on the end ofthe spring, and Fig. 9 is a front view of the same.

A is the framing of the car, and A is the axle provided with wheels a,of ordinary construction.

B B are internal friction-wheels provided with central hubs looselyjournaled upon the axle and keeping said friction-wheels at a iixeddistance apart. Ratchet-teeth B B are formed upon the outer periphery ofeach of the friction-wheels. These teeth may be in a single row or indouble rows, and by preference they are constructed with two rows ofteeth, which alternate with each other, as shown in Fig. a. Eachfriction-wheel also has secured upon its inner side vanotherratchetwheel, C, the teeth of which are arranged in the reversedirection from the teeth of the ratchet B.

D is'the spring for starting the car. Each end of this spring has ablock, D secured to it, and to this block a spring-pawl, d, is pivoted,for connecting it to the ratchet-wheel C, as shown in Fig. 7.

A modification of the pawl-connection is shown in S and 9, in which thespringpawl d is reversed in position, and the block to which the end ofthe spring is attached is hinged to a ring, E, a segment only of whichis shown.

E is a link, which pivotally connects the block D with the ring E, andpermits the end of the spring to draw inward as the diameter of the saidspring is reduced by its being wound up. By means of this hingedattachment the contraction and expansion of the spring incident to thewinding and un-V winding is compensated for. v

The rings E, above referred to, are cylindrically prolonged 'toward themiddle of the apparatus, so as to limit the straining of the springs.This is accomplished either bythe springs being wound directly aroundthese cylinders or by their being iitted on the outside with looserings, around which the springs are wound. These rings move togetherwith the springs during the winding, so that they can follow thedifferent speeds of each single winding, whereby unnecessaryT frictionis avoided. The exterior diameter of the rings corresponds with thesmallest interior diameter of the springs when strained.

F F are clutch-disks, which are secured to the axle inside thefriction-wheels.

F F are .the segmental friction -blocks which bea?I against the saidfriction-wheels,

and ff are arms which slide in grooves in the clutch-disks and have thefriction-blocks F secured upon their outer ends.

IOO

:i temes axle.

I-I .ll are .'uljustable arms, which plvotally x connect the collars (frwith the friction-5 blocks 11".

oi' it, and that it is brought into action accord-` ing to the directionin which thc ear 1s travelfln gi The dictationv oig the device is asiollows: 'When the car is to he stormed, the t'lriver,by turning' thebrake-handlcs to oneside, throws the revolving clutch-blocks into gearwith the friction-wheel upon one side of the spring,

H' is a rectangular frame, which is con- 1o nected to the collars G bythe loops 71,', which engage with the grooves J. pivoted to thecar-frame A by the pins l.

l l' are rods, and i" a" are chains connected to the ends oi' the saidrectangular frame and passing over guide-sheaves J, supljiertcd by thecard'ranlc.

J' a ilrum ior working the rectangular frame. rlhis drum is mounted uponthe shaii't j, provided with a handle,"j', for partially ro- 2o tatingit, and thereby moving the collars G' simultaneously in the samedirection.

Other mechanism might be used foroliiera-ting the collars besides thatdescribed, which is merely shown as a convenient and operative devicefor that. purpose, and which does not constitute an essential partei'the present invention. Y

Each ratchet-wheel i3' provided with a pivoted stop-pawl connection, asfollows:

K K are shafts journaled upon each side of the ratehetwheels, and uponcach of these shafts a disengaging-cam, K', 'is secured. Pawls 7L' arepivoted to the lower end ot' each cam. 'When two rows of teeth areformed on 3 5 the ratchet-wheels, two pawls are used-one ii'or each rowof teeth. A counter-balance, 7s', is provided, which presses the lowerend'oi the cam toward the ratchet-wheel and causes the pawls to lieclose against the ratchet- 4o teeth. p Y

L a small'weighnwhich is pivoted to the cam, and is provided with anarm7 Z, which hears against Veach pawl and keeps them pressed againstthe ratchet-teeth.

4 5 L' a projecting lug at the top of the cam, and Z is anadjusting-screw, which passes through said lug and bears against a iixedstop, M, on the car-frame-V This adjustable stop prevents the lower endof the cam from 5o bearing against the ratchet-teeth.

M' is the disengaging-rod, which is pivoted tothe upper part of the cani7U" by the pin ni.

Two d isengaging-rods are provided-one for each ratehet-wheel-and therod are extend ed to the opposite ends ol' the car.

N a fast piece, and N is a pivoted bellw crank lever for operating' therod M' in one direction, and n is a spiral springl l'orretracting thedisengaging-rod.

The abo\'cf.lesc1'ibed means i'or operating the disengaging-rod does notl'orni an essential part olf tlicin'csfuit invention, but; isillustrated as being a practicable and convenient'.I method. p

It will be noticed that all the meehanisni upon one side ot' the springl) is a duplication oi' the mechanism upon the opposite side The framell' is and at the same time throws the clutch upon the other side oi'the spring out ot' action, and the spring is wound up b v thercvolvingaxlc until the car is brought to a standstill. The disent, gingpawls of the ratenet-wheels on the friction-wheel which is unclutchedhold the end ofv the spring upon that side and permit the spring to bewound tightly.

lt will be understood that the lLn'alce-lnindlc must be thrown to theside required to ln'ing the right clutch into action. Then the car is tobe started, the brake-hantille is first swung over to the opposite side,so as to shift the clutches to setl the clutch that was loose and freethe clutch that V'as set. 'ihedriver then releases the loeking-pawl onthe ratchetwheel at the end where the clutch is now applied by pressingwith his foot on the pedal N. This exerts a pull on the disengagingrod,which turns the lower end of the cam until the center ol' the pawl-pvotpasses a li ne drawn through the center of the cam-shaft and the pointoi" the pawl, when the tension of the spring, actingl upon theratchet-wheel, forces the lower end of the cam outward and reverses thepawl upon the face ol the ratchettceth. The continued motion of thespring and the disengaged ratchet-wheel is connnnnicatcd to the axle bythe frictioirwheel and friction-blocks, which, having been shifted, asbefore described, cause the axle to revolve in the same direction asbefore.

nThe' paw1 -connection on theends of the spring is for the purpose ofallowing' the en d of the spring to disengage automatically from thewinding-latchet and friction-wheel should a clutch be applied and thecar run in the direction which would unwind the spring, the clutchnotpbcing thrown out of gear by the time the spring is fully unwound, asany Vfurther forcibleV unwindingl of the spring would break it orotherwise damage it, so that it would be useless for its legitimatework. For heavy work, a plurality of springs may be employed, all ofthem being coupled to the clutchheads in the same manner as abovedescribed. Then two or more springs are employech'they are nested intocach other, the clutch-heads being provided with two or more -rings oli'ratchet-teeth, (1', oit' successively-dccrcasing diameter.

l. ln a car-starter, the combination, with the winding ratchet-wheelsjournaled upon the axle, of the springbetween said ratchetwheels and thepawls pivotally connected to the ends of the spring and engaging withthe teeth ol` the ratchet-wheels, substantially as and l'or the purposeset forth.

TOO

IIO

2. In a ear-starter, the combination, with the windin g ratchet-wh eeljournaled upon the axle, of the sprin eireuinj aeent to t-heratohetwheel, a ring at the end of the spring, a link pivoting` the endof the spring to said ring and permitting said spring to eontraet indiameter when hein wound up, and a pawl pivoted to the said ring andengaging with the teeth of the ratehet-wlieel, suhstantiall y as and forthe purpose set forth. y

3. In a ear-starter, the Combination of the internal friction-wheelsjournaled upon the axle, the spring between said frietion-wheels withits ends Connected thereto, the ratchetteeth upon the outer peripheriesof the frietion-wheels, the pivoted stop-pawls engaging with saidratchet-wheels, the Clutch-disks seeured to the axle inside thefriction-wheels, and the friction-blocks sliding in said elutehdisks fortransmitting the rotary motion to and from the axle and spring,substantially as and for-the purpose set forth.

at. In a ear-starter, the combinati-ien of a revoluble internalfriction-wheel j onrnaled upon the axle, a spring haring one endconnected engagingI with the winding ratchet-wheels, f

friction-Clutches revolviu g with the axle and adapted to engagealternately with the frietion-wheels, and pivoted stop-pawls supportedby the ear-frame and adapted to engage with the ratchet-teeth upon thefriction-wheels, substantially as and for the purpose set forth.

C. In a ear-starter, the combination, with a wheel journaled upon theaxle and provided with ratchet-teeth upon its periphery, of a earnpiveted to the ear-frame and provided with a counter-balanee pressingits lower end toward the ratchet-teeth, and a Stop limiting the motionof the Cani toward said teeth, a pawl pivoted to the lower end of saidearn and engaging with the ratchet-teeth, and a disengaging-rod foroperatin said eam and pawl, suhstani ially as and for the purpose setforth.

7. In a ear-starter, the combination, with a wheel journaled upon theaxle and provided with ratehet-teeth upon its periphery, of a eanimounted on a shaft ejournaled in the earframe and provided with aCounter-balance pressing its lower end toward the ratchet teeth, and anadj ustahle step limiting the inotion of the eain toward the teeth, apawl pivoted to the lower end of the @am and engaging with theratchet-teeth, a weight pivoted to the Cam and pressing said pawlagainst the `ratehetteeth, and a disengaging-rod for operating said eainand pawl, substantially as and for the purl'iose set fort-h.

S. In a ear-starter, the Combination, with a wheel journaled upon theaxle and provided with two alternating rows of ratchet-teeth upon itsperiphery, of a stationary pivoted cani provided with a Counter-balancepressing its lower end toward the ratchet-teeth, and a stop limiting itsmotion toward the teeth, a rod for operating the eam, and two pawlspivoted to the lower end of the cani and engaging with theratchet-teeth, substantially as and for the purpose set forth.

In testimony whereof I affix niy signature in presence of two witnesses.

PHILIP VEILBACH.

Vi tnesses:

VIGGo CoNsmNTINE EBERTH, LAURITZ NIELsEN.

